Salinity on artificial reproduction of silver catfish (Rhamdia quelen)-Reference-Cited by-同舟云学术

Salinity on artificial reproduction of silver catfish (Rhamdia quelen)

Published:2015-03 Issue:3 Volume:45 Page:458-463
ISSN:0103-8478
Container-title:Ciência Rural
language:
Short-container-title:Cienc. Rural

Author:

Martins Gabriel Bernardes¹,Piedras Sérgio Renato Noguez²,Pouey Juvêncio Luís Osório Fernandes²,Bongalhardo Denise Calisto³,Robaldo Ricardo Berteaux⁴

Affiliation:

1. Universidade Federal do Rio Grande, Brazil

2. Universidade Federal de Pelotas, Brazil

3. Universidade Federal de Pelotas, Brazil; UFPel, Brazil

4. Universidade Federal do Rio Grande, Brazil; UFPel, Brazil

Abstract

Attempting to improve reproduction performance and ichthyo prophylaxis, this study evaluated the effects of maintaining silver catfish (Rhamdia quelen) broodstock in different saline concentrations (0, 2, 4, 6 and 8‰) on gametes quality and reproductive viability. The results showed that sperm percent motility did not change between 0 and 4‰, but it was reduced at 6‰, and sperm became immotile at 8‰ salinity. Sperm motility time was increased (almost five fold) at 6‰. Salinities up to 4‰ prevented fertilization and hatching, proving their deleterious effects on oocytes and embryos. Therefore, media up to 4‰ salinity may be an alternative for icthyo prophylaxis, although fertilization and incubation must be done in freshwater medium

Publisher

FapUNIFESP (SciELO)

Subject

General Veterinary,Agronomy and Crop Science,Animal Science and Zoology

Link

http://www.scielo.br/pdf/cr/v45n3/1678-4596-cr-45-03-00458.pdf

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